Table 1. Chemical composition of lupin grains, lupin flakes, and experimental diets (DM basis)

Item	Lupin grain	Lupin flake	Formula feed	Rye grass
Dry matter (%)	89.22 ± 0.45	90.40 ± 0.42	90.73 ± 0.35	67.84 ± 0.46
Crude protein (%)	36.21 ± 1.11	35.84 ± 0.87	15.08 ± 0.14	13.48 ± 0.06
Ether extract (%)	6.29 ± 0.02	6.28 ± 0.02	3.06 ± 0.07	2.78 ± 0.01
Crude fiber (%)	13.39 ± 0.22	13.54 ± 0.14	3.87 ± 0.55	35.18 ± 0.16
NDF (%)	27.26 ± 0.71	26.32 ± 0.26	47.87 ± 0.91	59.80 ± 0.27
ADF (%)	21.03 ± 0.44	20.94 ± 0.58	10.40 ± 0.63	38.00 ± 0.16
TDN (%)	94.08 ± 1.28	94.57 ± 2.21	75.40 ± 0.35	63.80 ± 0.29

DM, dry matter; NDF, neutral detergent fiber; ADF, acid detergent fiber; TDN, total digestible nutrients (calculated values).